CVE-2023-51107Network attack vector

Processing crash via compute_color divide-by-zero

Published Dec 26, 2023 · Updated Sep 9, 2024

Divide-by-zero in compute_color() in Artifex MuPDF 1.23.4 allows attackers to crash a processing instance via unspecified input. The report identifies line 533 of jquant2.c, where compute_color() performs a division with a zero divisor, but it supplies no triggering file, input path, or reproducible call sequence. Artifex disputes both the flaw and the affected-product identification because the submitted evidence was insufficient, leaving the exploitation gate and affected state unverified.

CVSS severity7.5
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Divide-by-zero in compute_color() in Artifex MuPDF 1.23.4 allows attackers to crash a processing instance via unspecified input. The report identifies line 533 of jquant2.c, where compute_color() performs a division with a zero divisor, but it supplies no triggering file, input path, or reproducible call sequence. Artifex disputes both the flaw and the affected-product identification because the submitted evidence was insufficient, leaving the exploitation gate and affected state unverified.

The record

CVE
CVE-2023-51107
Published
Dec 26, 2023
Updated
Sep 9, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-369
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-369Divide By Zero

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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